US20050207948A1 - Catalytic converter with integral heat shield device - Google Patents
Catalytic converter with integral heat shield device Download PDFInfo
- Publication number
- US20050207948A1 US20050207948A1 US10/802,316 US80231604A US2005207948A1 US 20050207948 A1 US20050207948 A1 US 20050207948A1 US 80231604 A US80231604 A US 80231604A US 2005207948 A1 US2005207948 A1 US 2005207948A1
- Authority
- US
- United States
- Prior art keywords
- catalytic converter
- liners
- liner
- catalyst
- opposing ends
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2842—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for monolithic supports, e.g. of honeycomb type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
- F01N13/141—Double-walled exhaust pipes or housings
- F01N13/143—Double-walled exhaust pipes or housings with air filling the space between both walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/02—Fitting monolithic blocks into the housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49345—Catalytic device making
Definitions
- This invention relates to a catalytic converter with a heat shield and method of forming a catalytic converter integral with a heat shield.
- Catalytic converters are used to reduce harmful emissions from vehicle exhaust. Catalytic converters reach high temperatures, up to 400° C. or more, to achieve the desired chemical reactions necessary to reduce harmful products of combustion. The sooner the catalytic converter reaches the desired operating temperature, the sooner the catalyst can begin converting the product of combustion. Since the catalytic converter reaches high temperatures, it must be insulated from other portions of the vehicle that may be harmed by the heat typically by using a heat shield.
- a typical prior art catalytic converter includes two halves that are secured to one another at a seam forming a flange extending about the perimeter of the catalytic converter. This type of configuration results in a relatively flat and wide package that must be located on the underside of the vehicle.
- a heat shield is then welded to one or more sides of the catalytic converter by brackets. The heat shield typically does not entirely enclose the portion of the catalytic converter containing the catalysts providing poor shielding and insulation.
- catalytic converter and heat shield having a shape more suitable for packaging on the underside of the vehicle. It is also desirable to provide a catalytic converter having a heat shield that does not require attachment to the catalytic converter in a separate step during the manufacturing process.
- the inventive catalytic converter includes an inner liner housing a catalyst and an outer liner concentric with the inner liner that acts as the heat shield.
- the liners are cylindrical tubes.
- the liners are arranged between opposing dies and the dies are moved toward one another to plastically deform the ends inwardly to form a conical flange.
- the forming process provides a sealed cavity between the walls of the inner and outer liners that insulates the hot catalyst housed within the inner liner from the environment exterior of the catalytic converter.
- First and second tapered connecting tubes are welded onto the opposing ends of the catalytic converter in the area of the flange.
- the present invention provides a catalytic converter and heat shield having a shape more suitable for packaging on the underside of the vehicle, which has a diameter that is not much larger than the tube diameter of the rest of the exhaust system.
- the inventive manufacturing process provides a catalytic converter with a heat shield that does not require attachment to the catalytic converter in a separate step during the manufacturing process.
- the inventive heat shield better insulates the catalyst providing earlier light off, reducing harmful emissions.
- FIG. 1 is a schematic view of the inventive manufacturing process used in producing the inventive catalytic converter.
- FIG. 2 is a cross-section view of deform catalytic converter liners with the connecting tubes being secured to the ends of the catalytic converter.
- FIG. 3 is a cross-sectional view of a fully assembled catalytic converter in accordance with one example of the present invention.
- FIG. 4 is an end view of the catalytic converter shown in FIG. 3 .
- the catalytic converter 8 includes a center portion 10 having an inner liner 12 housing a catalyst or substrate 14 .
- An outer liner 16 is arranged about the inner liner 12 so that there is space between the liners 12 and 16 .
- the liners 12 and 16 preferably have a circular cross-section and are cylindrical in shape. Furthermore, it is preferable that the liners 12 and 16 are of approximately the same length.
- the center portion 10 is arranged between opposing dies 20 of a forming machine 18 .
- the dies 20 have a generally conical recess, but may be of any suitable shape, as will be appreciated by one of ordinary skill in the art.
- the dies 20 are moved towards one another to plastically deform opposing ends 22 of the center portion 10 inwardly. As the ends 22 are being deformed, the inner liner 12 becomes centered relative to the outer liner 16 .
- the forming machine 18 may include a fixed die 20 a and a moveable die 20 b that is linearly actuated by a press 24 toward the fixed die 20 a.
- the ends 22 taper inward forming a flange in which the ends of the liners 12 and 16 overlap and engage one another to provide a sealed cavity 32 .
- the sealed cavity 32 provides a generally uniform air gap arranged circumferentially about the inner liner 12 insulating the substrate 14 . In the example shown in FIG. 2 , the cavity 32 extends at least the length of the substrate 14 to sufficiently insulate it about its entire length and circumference.
- the cavity 32 is sealed to minimize heat transfer from the interior of the inner liner 12 to the outer liner 16 .
- the inventive catalytic converter 8 provides improved insulation over prior arrangements which enable quicker light-off of the substrate 14 enabling a desired chemical reaction earlier in vehicle operation.
- Connecting tubes 26 having tapered ends are secured to the opposing ends 22 , preferably by a weld bead 30 applied by a welder 20 a about the circumference of the edge of the connecting tube 26 .
- the weld bead 30 is preferably applied to the edge of the connecting tube where it overlaps the flange to provide sufficient structural rigidity to the joint.
- the outer liner 16 includes a first diameter d 1 that is greater than a second diameter d 2 of the inner liner.
- the diameters d 1 and d 2 have a difference that provide an air gap of approximately 1 ⁇ 4 inch or less about the circumference of the inner liner 12 .
- the air gap may be in a range of approximately 1 ⁇ 4 inch to approximately 1 ⁇ 8 inch in one example embodiment, the air gap may be another suitable dimension depending upon the heat generated by the substrate 14 and other variables.
- the edge of the opposing ends 22 has a third diameter d 3 that is greater than a fourth diameter d 4 of an opening of the connecting tubes 26 .
- the tapered edge of the connecting tubes 26 where the weld bead 30 is applied preferably includes a diameter d 5 that is greater than the third diameter d 3 but less than the second diameter d 2 so that the tapered edge of the connecting tube 26 is located along the flange.
- the present invention provides a compact cylindrical design having an integrated heat shield forming a sealed cavity to provide improved substrate insulation. Furthermore, the inventive catalytic converter is manufactured using a simple process.
Abstract
Description
- This invention relates to a catalytic converter with a heat shield and method of forming a catalytic converter integral with a heat shield.
- Catalytic converters are used to reduce harmful emissions from vehicle exhaust. Catalytic converters reach high temperatures, up to 400° C. or more, to achieve the desired chemical reactions necessary to reduce harmful products of combustion. The sooner the catalytic converter reaches the desired operating temperature, the sooner the catalyst can begin converting the product of combustion. Since the catalytic converter reaches high temperatures, it must be insulated from other portions of the vehicle that may be harmed by the heat typically by using a heat shield.
- A typical prior art catalytic converter includes two halves that are secured to one another at a seam forming a flange extending about the perimeter of the catalytic converter. This type of configuration results in a relatively flat and wide package that must be located on the underside of the vehicle. A heat shield is then welded to one or more sides of the catalytic converter by brackets. The heat shield typically does not entirely enclose the portion of the catalytic converter containing the catalysts providing poor shielding and insulation.
- It is desirable to provide a catalytic converter and heat shield having a shape more suitable for packaging on the underside of the vehicle. It is also desirable to provide a catalytic converter having a heat shield that does not require attachment to the catalytic converter in a separate step during the manufacturing process.
- The inventive catalytic converter includes an inner liner housing a catalyst and an outer liner concentric with the inner liner that acts as the heat shield. In one example, the liners are cylindrical tubes. During the catalytic converter manufacturing process, the liners are arranged between opposing dies and the dies are moved toward one another to plastically deform the ends inwardly to form a conical flange. The forming process provides a sealed cavity between the walls of the inner and outer liners that insulates the hot catalyst housed within the inner liner from the environment exterior of the catalytic converter. First and second tapered connecting tubes are welded onto the opposing ends of the catalytic converter in the area of the flange.
- In this manner, the present invention provides a catalytic converter and heat shield having a shape more suitable for packaging on the underside of the vehicle, which has a diameter that is not much larger than the tube diameter of the rest of the exhaust system. The inventive manufacturing process provides a catalytic converter with a heat shield that does not require attachment to the catalytic converter in a separate step during the manufacturing process. The inventive heat shield better insulates the catalyst providing earlier light off, reducing harmful emissions.
- These and other features of the present invention can be best understood from the following specification and drawings, the following of which is a brief description.
-
FIG. 1 is a schematic view of the inventive manufacturing process used in producing the inventive catalytic converter. -
FIG. 2 is a cross-section view of deform catalytic converter liners with the connecting tubes being secured to the ends of the catalytic converter. -
FIG. 3 is a cross-sectional view of a fully assembled catalytic converter in accordance with one example of the present invention. -
FIG. 4 is an end view of the catalytic converter shown inFIG. 3 . - An example of the inventive manufacturing process for the catalytic converter of the present invention is schematically shown in
FIG. 1 . Thecatalytic converter 8 includes acenter portion 10 having aninner liner 12 housing a catalyst orsubstrate 14. Anouter liner 16 is arranged about theinner liner 12 so that there is space between theliners liners liners - The
center portion 10 is arranged between opposing dies 20 of a formingmachine 18. The dies 20 have a generally conical recess, but may be of any suitable shape, as will be appreciated by one of ordinary skill in the art. The dies 20 are moved towards one another to plasticallydeform opposing ends 22 of thecenter portion 10 inwardly. As theends 22 are being deformed, theinner liner 12 becomes centered relative to theouter liner 16. The formingmachine 18 may include afixed die 20 a and amoveable die 20 b that is linearly actuated by apress 24 toward the fixeddie 20 a. - The
ends 22 taper inward forming a flange in which the ends of theliners cavity 32. The sealedcavity 32 provides a generally uniform air gap arranged circumferentially about theinner liner 12 insulating thesubstrate 14. In the example shown inFIG. 2 , thecavity 32 extends at least the length of thesubstrate 14 to sufficiently insulate it about its entire length and circumference. Thecavity 32 is sealed to minimize heat transfer from the interior of theinner liner 12 to theouter liner 16. The inventivecatalytic converter 8 provides improved insulation over prior arrangements which enable quicker light-off of thesubstrate 14 enabling a desired chemical reaction earlier in vehicle operation. - Connecting
tubes 26 having tapered ends are secured to theopposing ends 22, preferably by aweld bead 30 applied by awelder 20 a about the circumference of the edge of the connectingtube 26. Theweld bead 30 is preferably applied to the edge of the connecting tube where it overlaps the flange to provide sufficient structural rigidity to the joint. Referring toFIG. 3 , theouter liner 16 includes a first diameter d1 that is greater than a second diameter d2 of the inner liner. The diameters d1 and d2 have a difference that provide an air gap of approximately ¼ inch or less about the circumference of theinner liner 12. While the air gap may be in a range of approximately ¼ inch to approximately ⅛ inch in one example embodiment, the air gap may be another suitable dimension depending upon the heat generated by thesubstrate 14 and other variables. The edge of theopposing ends 22 has a third diameter d3 that is greater than a fourth diameter d4 of an opening of the connectingtubes 26. The tapered edge of the connectingtubes 26 where theweld bead 30 is applied preferably includes a diameter d5 that is greater than the third diameter d3 but less than the second diameter d2 so that the tapered edge of the connectingtube 26 is located along the flange. - The present invention provides a compact cylindrical design having an integrated heat shield forming a sealed cavity to provide improved substrate insulation. Furthermore, the inventive catalytic converter is manufactured using a simple process.
- Although a preferred embodiment of this invention has been disclosed, a worker of ordinary skill in this art would recognize that certain modifications would come within the scope of this invention. For that reason, the following claims should be studied to determine the true scope and content of this invention.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/802,316 US20050207948A1 (en) | 2004-03-17 | 2004-03-17 | Catalytic converter with integral heat shield device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/802,316 US20050207948A1 (en) | 2004-03-17 | 2004-03-17 | Catalytic converter with integral heat shield device |
Publications (1)
Publication Number | Publication Date |
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US20050207948A1 true US20050207948A1 (en) | 2005-09-22 |
Family
ID=34986499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/802,316 Abandoned US20050207948A1 (en) | 2004-03-17 | 2004-03-17 | Catalytic converter with integral heat shield device |
Country Status (1)
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US (1) | US20050207948A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1772603A1 (en) * | 2005-10-10 | 2007-04-11 | J. Eberspächer GmbH & Co. KG | Component of an exhaust system |
US20090208393A1 (en) * | 2005-09-16 | 2009-08-20 | Lothar Wenzel | Device for removing harmful constituents from exhaust gases of internal combustion engines |
CN101586173B (en) * | 2009-06-24 | 2010-09-22 | 重庆钢铁(集团)有限责任公司 | Method of repairing and assembling vaporization gas hood of converter vaporization cooling boiler |
US10151230B2 (en) | 2015-05-08 | 2018-12-11 | Corning Incorporated | Housing, fluid stream treatment article, exhaust system and methods of manufacturing |
GB2568900A (en) * | 2017-11-29 | 2019-06-05 | Perkins Engines Co Ltd | Exhaust gas treatment assembly comprising a gas permeable block and a housing, and method of assembly |
US10436094B2 (en) | 2017-01-30 | 2019-10-08 | Acat Global | Swaged shell |
US10465585B2 (en) | 2015-03-23 | 2019-11-05 | Corning Incorporated | Exhaust gas treatment article and methods of manufacturing same |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4969264A (en) * | 1986-06-12 | 1990-11-13 | Tennessee Gas Pipeline Company | Catalytic converter and substrate support |
US5293743A (en) * | 1992-05-21 | 1994-03-15 | Arvin Industries, Inc. | Low thermal capacitance exhaust processor |
US5829132A (en) * | 1996-08-07 | 1998-11-03 | Arvin Industries, Inc. | Methods of assembling an exhaust processor |
US5937516A (en) * | 1996-12-13 | 1999-08-17 | General Motors Corporation | Method for spin forming articles |
US6334981B1 (en) * | 1994-12-20 | 2002-01-01 | EMITEC GESELLSCHAFT FüR EMISSIONSTECHNOLOGIES MBH | Double-walled housing, in particular for exhaust gas catalytic converters of motor vehicles and method of producing a double-walled housing |
US20020096225A1 (en) * | 2001-01-19 | 2002-07-25 | Seiji Ishizu | Double-pipe-structure hollow member, method of manufacturing double-pipe-structure hollow member, and fluid treating system employing double-pipe-structure hollow member |
US20040081594A1 (en) * | 2002-10-29 | 2004-04-29 | Houliang Li | Seamless catalytic converter comprising inner heat shield |
US20050036923A1 (en) * | 2003-07-31 | 2005-02-17 | Brisbin Ronald S. | End cone construction for catalytic converters and method for making same |
US20060085980A1 (en) * | 2001-05-18 | 2006-04-27 | David Mayfield | Method and apparatus for manufacturing a catalytic converter |
-
2004
- 2004-03-17 US US10/802,316 patent/US20050207948A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4969264A (en) * | 1986-06-12 | 1990-11-13 | Tennessee Gas Pipeline Company | Catalytic converter and substrate support |
US5293743A (en) * | 1992-05-21 | 1994-03-15 | Arvin Industries, Inc. | Low thermal capacitance exhaust processor |
US6334981B1 (en) * | 1994-12-20 | 2002-01-01 | EMITEC GESELLSCHAFT FüR EMISSIONSTECHNOLOGIES MBH | Double-walled housing, in particular for exhaust gas catalytic converters of motor vehicles and method of producing a double-walled housing |
US5829132A (en) * | 1996-08-07 | 1998-11-03 | Arvin Industries, Inc. | Methods of assembling an exhaust processor |
US5937516A (en) * | 1996-12-13 | 1999-08-17 | General Motors Corporation | Method for spin forming articles |
US20020096225A1 (en) * | 2001-01-19 | 2002-07-25 | Seiji Ishizu | Double-pipe-structure hollow member, method of manufacturing double-pipe-structure hollow member, and fluid treating system employing double-pipe-structure hollow member |
US20060085980A1 (en) * | 2001-05-18 | 2006-04-27 | David Mayfield | Method and apparatus for manufacturing a catalytic converter |
US20040081594A1 (en) * | 2002-10-29 | 2004-04-29 | Houliang Li | Seamless catalytic converter comprising inner heat shield |
US20050036923A1 (en) * | 2003-07-31 | 2005-02-17 | Brisbin Ronald S. | End cone construction for catalytic converters and method for making same |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090208393A1 (en) * | 2005-09-16 | 2009-08-20 | Lothar Wenzel | Device for removing harmful constituents from exhaust gases of internal combustion engines |
EP1772603A1 (en) * | 2005-10-10 | 2007-04-11 | J. Eberspächer GmbH & Co. KG | Component of an exhaust system |
CN101586173B (en) * | 2009-06-24 | 2010-09-22 | 重庆钢铁(集团)有限责任公司 | Method of repairing and assembling vaporization gas hood of converter vaporization cooling boiler |
US10465585B2 (en) | 2015-03-23 | 2019-11-05 | Corning Incorporated | Exhaust gas treatment article and methods of manufacturing same |
US10151230B2 (en) | 2015-05-08 | 2018-12-11 | Corning Incorporated | Housing, fluid stream treatment article, exhaust system and methods of manufacturing |
US10436094B2 (en) | 2017-01-30 | 2019-10-08 | Acat Global | Swaged shell |
GB2568900A (en) * | 2017-11-29 | 2019-06-05 | Perkins Engines Co Ltd | Exhaust gas treatment assembly comprising a gas permeable block and a housing, and method of assembly |
GB2568900B (en) * | 2017-11-29 | 2020-09-02 | Perkins Engines Co Ltd | Exhaust gas treatment assembly comprising a gas permeable block and a housing, and method of assembly |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: ARVIN TECHNOLOGIES, INC., MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BORNEBY, HANS;REEL/FRAME:015118/0276 Effective date: 20040316 |
|
AS | Assignment |
Owner name: MAREMONT EXHUAST PRODUCTS, INC., TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ARVIN TECHNOLOGIES, INC.;REEL/FRAME:016399/0601 Effective date: 20050614 |
|
AS | Assignment |
Owner name: MAREMONT EXHAUST PRODUCTS, INC., TEXAS Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S NAME PREVIOUSLY RECORDED ON REEL 016399 FRAME 0601;ASSIGNOR:ARVIN TECHNOLOGIES, INC.;REEL/FRAME:017182/0375 Effective date: 20050614 |
|
AS | Assignment |
Owner name: INTERNATIONAL MUFFLER COMPANY, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MAREMONT EXHAUST PRODUCTS, INC.;REEL/FRAME:017681/0515 Effective date: 20060307 |
|
AS | Assignment |
Owner name: INTERNATIONAL MUFFLER COMPANY, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MAREMONT EXHAUST PRODUCTS, INC.;REEL/FRAME:018311/0207 Effective date: 20060307 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |